diff --git a/MCTG/ConsoleApp/Program.cs b/MCTG/ConsoleApp/Program.cs
index 7430c33..d12e076 100644
--- a/MCTG/ConsoleApp/Program.cs
+++ b/MCTG/ConsoleApp/Program.cs
@@ -11,13 +11,18 @@ Console.WriteLine("Hello, World!\n\n");
 
 
 // TESTS:
-DataManager dataMgr = new DataManager(new DataContractXML());
+//DataManager dataMgr = new DataManager(new Stubs());
+
+//DataManager dataMgr = new DataManager(new DataContractXML(xmlFolderPath: "../../../../DataPersistence/data"));
+DataManager dataMgr = new DataManager(new DataContractJSON(jsonFolderPath: "../../../../DataPersistence/data"));
+
 RecipeCollection rc = new RecipeCollection("All recipes", dataMgr.Data["recipes"].Cast<Recipe>().ToArray());
 
 Recipe? ret = SearcherRecipe.ResearchOn(rc);
 Console.WriteLine(ret);
 
-//dataMgr.Serializer = new DataContractXML();
+//dataMgr.Serializer = new DataContractXML(xmlFolderPath: "../../../../DataPersistence/data");
+//dataMgr.Serializer = new DataContractJSON(jsonFolderPath: "../../../../DataPersistence/data");
 dataMgr.Save();
 
 // press any key to quit
diff --git a/MCTG/DataPersistence/DataContractJSON.cs b/MCTG/DataPersistence/DataContractJSON.cs
new file mode 100644
index 0000000..524eaac
--- /dev/null
+++ b/MCTG/DataPersistence/DataContractJSON.cs
@@ -0,0 +1,62 @@
+using Model;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.Serialization;
+using System.Runtime.Serialization.Json;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml;
+
+namespace DataPersistence
+{
+    public class DataContractJSON : IDataManager
+    {
+        private string _jsonFolderPath;
+        private DataContractJsonSerializerSettings _dataContractJsonSerializerSettings;
+
+        public DataContractJSON(string jsonFolderPath = "",
+                                DataContractJsonSerializerSettings? dataContractJsonSerializerSettings = null)
+        {
+            _jsonFolderPath = jsonFolderPath;
+            if (dataContractJsonSerializerSettings is null)
+                _dataContractJsonSerializerSettings = new DataContractJsonSerializerSettings()
+                {
+                    KnownTypes = new[] { typeof(Recipe) }
+                };
+            else
+                _dataContractJsonSerializerSettings = dataContractJsonSerializerSettings;
+        }
+
+        public Dictionary<string, List<object>> Load()
+        {
+            Dictionary<string, List<object>>? elements = new Dictionary<string, List<object>>();
+            var jsonSerializer = new DataContractJsonSerializer(typeof(Dictionary<string, List<object>>), _dataContractJsonSerializerSettings);
+            using (FileStream stream = File.OpenRead(Path.Combine(_jsonFolderPath, "data.json")))
+            {
+                elements = jsonSerializer.ReadObject(stream) as Dictionary<string, List<object>>;
+            }
+
+            if (elements is null)
+                throw new ArgumentNullException("elements");
+
+            return elements;
+        }
+
+        public void Save(Dictionary<string, List<object>> elements)
+        {
+            var jsonSerializer = new DataContractJsonSerializer(typeof(Dictionary<string, List<object>>), _dataContractJsonSerializerSettings);
+            using (FileStream stream = File.Create(Path.Combine(_jsonFolderPath, "data.json")))
+            {
+                using (var jsonWriter = JsonReaderWriterFactory.CreateJsonWriter(
+                    stream: stream,
+                    encoding: System.Text.Encoding.UTF8,
+                    ownsStream: false,
+                    indent: true))
+                {
+                    jsonSerializer.WriteObject(jsonWriter, elements);
+                }
+            }
+        }
+    }
+}
diff --git a/MCTG/DataPersistence/DataContractXML.cs b/MCTG/DataPersistence/DataContractXML.cs
index 9d10475..833919e 100644
--- a/MCTG/DataPersistence/DataContractXML.cs
+++ b/MCTG/DataPersistence/DataContractXML.cs
@@ -13,21 +13,33 @@ namespace DataPersistence
     {
         private string _xmlFolderPath;
         private XmlWriterSettings _xmlWriterSettings;
+        private DataContractSerializerSettings _dataContractSerializerSettings;
 
         public DataContractXML(string xmlFolderPath = "",
-                               XmlWriterSettings? xmlWriterSettings = null)
+                               XmlWriterSettings? xmlWriterSettings = null,
+                               DataContractSerializerSettings? dataContractSerializerSettings = null)
         {
             _xmlFolderPath = xmlFolderPath;
+
             if (xmlWriterSettings is null)
                 _xmlWriterSettings = new XmlWriterSettings() { Indent = true };
             else
                 _xmlWriterSettings = xmlWriterSettings;
+
+            if (dataContractSerializerSettings is null)
+                _dataContractSerializerSettings = new DataContractSerializerSettings()
+                {
+                    KnownTypes = new Type[] { typeof(Recipe) },
+                    PreserveObjectReferences = true
+                };
+            else
+                _dataContractSerializerSettings = dataContractSerializerSettings;
         }
 
         public Dictionary<string, List<object>> Load()
         {
             Dictionary<string, List<object>>? elements = new Dictionary<string, List<object>>();
-            var serializer = new DataContractSerializer(typeof(Dictionary<string, List<object>>), new Type[] { typeof(Recipe) });
+            var serializer = new DataContractSerializer(typeof(Dictionary<string, List<object>>), _dataContractSerializerSettings);
             using (Stream s = File.OpenRead(Path.Combine(_xmlFolderPath, "data.xml")))
             {
                 elements = serializer.ReadObject(s) as Dictionary<string, List<object>>;
@@ -41,7 +53,7 @@ namespace DataPersistence
 
         public void Save(Dictionary<string, List<object>> elements)
         {
-            var serializer = new DataContractSerializer(typeof(Dictionary<string, List<object>>), new Type[] { typeof(Recipe) });
+            var serializer = new DataContractSerializer(typeof(Dictionary<string, List<object>>), _dataContractSerializerSettings);
             using (TextWriter textWriter = File.CreateText(Path.Combine(_xmlFolderPath, "data.xml")))
             {
                 using (XmlWriter xmlWriter = XmlWriter.Create(textWriter, _xmlWriterSettings))
diff --git a/MCTG/DataPersistence/DataManager.cs b/MCTG/DataPersistence/DataManager.cs
index 6ea5843..7520704 100644
--- a/MCTG/DataPersistence/DataManager.cs
+++ b/MCTG/DataPersistence/DataManager.cs
@@ -12,11 +12,8 @@ namespace DataPersistence
         public IDataManager Serializer { get; set; }
         public Dictionary<string, List<object>> Data { get; private set; }
 
-        public DataManager(IDataManager dataMgr, string? path = null)
+        public DataManager(IDataManager dataMgr)
         {
-            //if (path is null) path = "..//..//..//..//data";
-            //Directory.SetCurrentDirectory(Path.Combine(Directory.GetCurrentDirectory(), path));
-
             Serializer = dataMgr;
             Data = Serializer.Load();
         }
diff --git a/MCTG/DataPersistence/DataPersistence.csproj b/MCTG/DataPersistence/DataPersistence.csproj
index 4b28c7b..d5050a6 100644
--- a/MCTG/DataPersistence/DataPersistence.csproj
+++ b/MCTG/DataPersistence/DataPersistence.csproj
@@ -10,4 +10,8 @@
     <ProjectReference Include="..\Model\Model.csproj" />
   </ItemGroup>
 
+  <ItemGroup>
+    <Folder Include="data\" />
+  </ItemGroup>
+
 </Project>
diff --git a/MCTG/DataPersistence/data/data.json b/MCTG/DataPersistence/data/data.json
new file mode 100644
index 0000000..7b89454
--- /dev/null
+++ b/MCTG/DataPersistence/data/data.json
@@ -0,0 +1,168 @@
+[
+  {
+    "Key": "recipes",
+    "Value": [
+      {
+        "__type": "recipe:#Model",
+        "id": 3005,
+        "preparation-steps": [
+          {
+            "description": "Faire cuire.",
+            "order": 1
+          },
+          {
+            "description": "Manger.",
+            "order": 2
+          }
+        ],
+        "title": "Cookies classiques"
+      },
+      {
+        "__type": "recipe:#Model",
+        "id": 28377,
+        "preparation-steps": [
+          {
+            "description": "Moulinez la pâte.",
+            "order": 1
+          },
+          {
+            "description": "Faire cuire pendant une bonne heure.",
+            "order": 2
+          },
+          {
+            "description": "Sortir du four et mettre dans un plat.",
+            "order": 3
+          }
+        ],
+        "title": "Cookies au chocolat"
+      },
+      {
+        "__type": "recipe:#Model",
+        "id": 10495,
+        "preparation-steps": [
+          {
+            "description": "Achetez les ingrédients.",
+            "order": 1
+          },
+          {
+            "description": "Préparez le matériel. Ustensiles et tout.",
+            "order": 2
+          },
+          {
+            "description": "Pleurez.",
+            "order": 3
+          }
+        ],
+        "title": "Gateau nature"
+      },
+      {
+        "__type": "recipe:#Model",
+        "id": 32282,
+        "preparation-steps": [
+          {
+            "description": "Achetez les légumes.",
+            "order": 1
+          },
+          {
+            "description": "Préparez le plat. Ustensiles et préchauffez le four.",
+            "order": 2
+          },
+          {
+            "description": "Coupez les pommes en morceaux et disposez-les sur le plat.",
+            "order": 3
+          },
+          {
+            "description": "Mettez enfin le plat au four, puis une fois cuit, dégustez !",
+            "order": 4
+          }
+        ],
+        "title": "Gateau au pommes"
+      },
+      {
+        "__type": "recipe:#Model",
+        "id": 26518,
+        "preparation-steps": [
+          {
+            "description": "Ajouter les oeufs.",
+            "order": 1
+          },
+          {
+            "description": "Ajouter la farine.",
+            "order": 2
+          },
+          {
+            "description": "Ajouter 100g de chocolat fondu.",
+            "order": 3
+          },
+          {
+            "description": "Mélanger le tout.",
+            "order": 4
+          },
+          {
+            "description": "Faire cuire 45h au four traditionnel.",
+            "order": 5
+          }
+        ],
+        "title": "Gateau au chocolat"
+      },
+      {
+        "__type": "recipe:#Model",
+        "id": 21970,
+        "preparation-steps": [
+          {
+            "description": "Faire une cuisson bien sec de la dinde à la poêle",
+            "order": 1
+          },
+          {
+            "description": "Mettre la dinde au frigo.",
+            "order": 2
+          },
+          {
+            "description": "Mettre le jambon dans le micro-onde.",
+            "order": 3
+          },
+          {
+            "description": "Faire chauffer 3min.",
+            "order": 4
+          },
+          {
+            "description": "Présentez sur un plat la dinde et le jambon : Miam !",
+            "order": 5
+          }
+        ],
+        "title": "Dinde au jambon"
+      },
+      {
+        "__type": "recipe:#Model",
+        "id": 12830,
+        "preparation-steps": [
+          {
+            "description": "Trouvez des épices de curry.",
+            "order": 1
+          },
+          {
+            "description": "Trouvez maintenant du poulet.",
+            "order": 2
+          },
+          {
+            "description": "Coupez la tête du poulet et posez-la dans un plat.",
+            "order": 3
+          },
+          {
+            "description": "Parsemez d'épices curry la tête de la poule.",
+            "order": 4
+          },
+          {
+            "description": "Mettre le tout au four traditionnel 30min.",
+            "order": 5
+          },
+          {
+            "description": "Dégustez en famille !",
+            "order": 6
+          }
+        ],
+        "title": "Poulet au curry"
+      }
+    ]
+  }
+]
\ No newline at end of file
diff --git a/MCTG/DataPersistence/data/data.xml b/MCTG/DataPersistence/data/data.xml
new file mode 100644
index 0000000..731915c
--- /dev/null
+++ b/MCTG/DataPersistence/data/data.xml
@@ -0,0 +1,162 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ArrayOfKeyValueOfstringArrayOfanyTypety7Ep6D1 xmlns:i="http://www.w3.org/2001/XMLSchema-instance" z:Id="1" z:Size="1" xmlns:z="http://schemas.microsoft.com/2003/10/Serialization/" xmlns="http://schemas.microsoft.com/2003/10/Serialization/Arrays">
+  <KeyValueOfstringArrayOfanyTypety7Ep6D1>
+    <Key z:Id="2">recipes</Key>
+    <Value z:Id="3" z:Size="7">
+      <anyType z:Id="4" xmlns:d4p1="http://schemas.datacontract.org/2004/07/Model" i:type="d4p1:recipe">
+        <d4p1:id>3005</d4p1:id>
+        <d4p1:preparation-steps z:Id="5" z:Size="2">
+          <d4p1:preparation-step z:Id="6">
+            <d4p1:description z:Id="7">Faire cuire.</d4p1:description>
+            <d4p1:order>1</d4p1:order>
+          </d4p1:preparation-step>
+          <d4p1:preparation-step z:Id="8">
+            <d4p1:description z:Id="9">Manger.</d4p1:description>
+            <d4p1:order>2</d4p1:order>
+          </d4p1:preparation-step>
+        </d4p1:preparation-steps>
+        <d4p1:title z:Id="10">Cookies classiques</d4p1:title>
+      </anyType>
+      <anyType z:Id="11" xmlns:d4p1="http://schemas.datacontract.org/2004/07/Model" i:type="d4p1:recipe">
+        <d4p1:id>28377</d4p1:id>
+        <d4p1:preparation-steps z:Id="12" z:Size="3">
+          <d4p1:preparation-step z:Id="13">
+            <d4p1:description z:Id="14">Moulinez la pâte.</d4p1:description>
+            <d4p1:order>1</d4p1:order>
+          </d4p1:preparation-step>
+          <d4p1:preparation-step z:Id="15">
+            <d4p1:description z:Id="16">Faire cuire pendant une bonne heure.</d4p1:description>
+            <d4p1:order>2</d4p1:order>
+          </d4p1:preparation-step>
+          <d4p1:preparation-step z:Id="17">
+            <d4p1:description z:Id="18">Sortir du four et mettre dans un plat.</d4p1:description>
+            <d4p1:order>3</d4p1:order>
+          </d4p1:preparation-step>
+        </d4p1:preparation-steps>
+        <d4p1:title z:Id="19">Cookies au chocolat</d4p1:title>
+      </anyType>
+      <anyType z:Id="20" xmlns:d4p1="http://schemas.datacontract.org/2004/07/Model" i:type="d4p1:recipe">
+        <d4p1:id>10495</d4p1:id>
+        <d4p1:preparation-steps z:Id="21" z:Size="3">
+          <d4p1:preparation-step z:Id="22">
+            <d4p1:description z:Id="23">Achetez les ingrédients.</d4p1:description>
+            <d4p1:order>1</d4p1:order>
+          </d4p1:preparation-step>
+          <d4p1:preparation-step z:Id="24">
+            <d4p1:description z:Id="25">Préparez le matériel. Ustensiles et tout.</d4p1:description>
+            <d4p1:order>2</d4p1:order>
+          </d4p1:preparation-step>
+          <d4p1:preparation-step z:Id="26">
+            <d4p1:description z:Id="27">Pleurez.</d4p1:description>
+            <d4p1:order>3</d4p1:order>
+          </d4p1:preparation-step>
+        </d4p1:preparation-steps>
+        <d4p1:title z:Id="28">Gateau nature</d4p1:title>
+      </anyType>
+      <anyType z:Id="29" xmlns:d4p1="http://schemas.datacontract.org/2004/07/Model" i:type="d4p1:recipe">
+        <d4p1:id>32282</d4p1:id>
+        <d4p1:preparation-steps z:Id="30" z:Size="4">
+          <d4p1:preparation-step z:Id="31">
+            <d4p1:description z:Id="32">Achetez les légumes.</d4p1:description>
+            <d4p1:order>1</d4p1:order>
+          </d4p1:preparation-step>
+          <d4p1:preparation-step z:Id="33">
+            <d4p1:description z:Id="34">Préparez le plat. Ustensiles et préchauffez le four.</d4p1:description>
+            <d4p1:order>2</d4p1:order>
+          </d4p1:preparation-step>
+          <d4p1:preparation-step z:Id="35">
+            <d4p1:description z:Id="36">Coupez les pommes en morceaux et disposez-les sur le plat.</d4p1:description>
+            <d4p1:order>3</d4p1:order>
+          </d4p1:preparation-step>
+          <d4p1:preparation-step z:Id="37">
+            <d4p1:description z:Id="38">Mettez enfin le plat au four, puis une fois cuit, dégustez !</d4p1:description>
+            <d4p1:order>4</d4p1:order>
+          </d4p1:preparation-step>
+        </d4p1:preparation-steps>
+        <d4p1:title z:Id="39">Gateau au pommes</d4p1:title>
+      </anyType>
+      <anyType z:Id="40" xmlns:d4p1="http://schemas.datacontract.org/2004/07/Model" i:type="d4p1:recipe">
+        <d4p1:id>26518</d4p1:id>
+        <d4p1:preparation-steps z:Id="41" z:Size="5">
+          <d4p1:preparation-step z:Id="42">
+            <d4p1:description z:Id="43">Ajouter les oeufs.</d4p1:description>
+            <d4p1:order>1</d4p1:order>
+          </d4p1:preparation-step>
+          <d4p1:preparation-step z:Id="44">
+            <d4p1:description z:Id="45">Ajouter la farine.</d4p1:description>
+            <d4p1:order>2</d4p1:order>
+          </d4p1:preparation-step>
+          <d4p1:preparation-step z:Id="46">
+            <d4p1:description z:Id="47">Ajouter 100g de chocolat fondu.</d4p1:description>
+            <d4p1:order>3</d4p1:order>
+          </d4p1:preparation-step>
+          <d4p1:preparation-step z:Id="48">
+            <d4p1:description z:Id="49">Mélanger le tout.</d4p1:description>
+            <d4p1:order>4</d4p1:order>
+          </d4p1:preparation-step>
+          <d4p1:preparation-step z:Id="50">
+            <d4p1:description z:Id="51">Faire cuire 45h au four traditionnel.</d4p1:description>
+            <d4p1:order>5</d4p1:order>
+          </d4p1:preparation-step>
+        </d4p1:preparation-steps>
+        <d4p1:title z:Id="52">Gateau au chocolat</d4p1:title>
+      </anyType>
+      <anyType z:Id="53" xmlns:d4p1="http://schemas.datacontract.org/2004/07/Model" i:type="d4p1:recipe">
+        <d4p1:id>21970</d4p1:id>
+        <d4p1:preparation-steps z:Id="54" z:Size="5">
+          <d4p1:preparation-step z:Id="55">
+            <d4p1:description z:Id="56">Faire une cuisson bien sec de la dinde à la poêle</d4p1:description>
+            <d4p1:order>1</d4p1:order>
+          </d4p1:preparation-step>
+          <d4p1:preparation-step z:Id="57">
+            <d4p1:description z:Id="58">Mettre la dinde au frigo.</d4p1:description>
+            <d4p1:order>2</d4p1:order>
+          </d4p1:preparation-step>
+          <d4p1:preparation-step z:Id="59">
+            <d4p1:description z:Id="60">Mettre le jambon dans le micro-onde.</d4p1:description>
+            <d4p1:order>3</d4p1:order>
+          </d4p1:preparation-step>
+          <d4p1:preparation-step z:Id="61">
+            <d4p1:description z:Id="62">Faire chauffer 3min.</d4p1:description>
+            <d4p1:order>4</d4p1:order>
+          </d4p1:preparation-step>
+          <d4p1:preparation-step z:Id="63">
+            <d4p1:description z:Id="64">Présentez sur un plat la dinde et le jambon : Miam !</d4p1:description>
+            <d4p1:order>5</d4p1:order>
+          </d4p1:preparation-step>
+        </d4p1:preparation-steps>
+        <d4p1:title z:Id="65">Dinde au jambon</d4p1:title>
+      </anyType>
+      <anyType z:Id="66" xmlns:d4p1="http://schemas.datacontract.org/2004/07/Model" i:type="d4p1:recipe">
+        <d4p1:id>12830</d4p1:id>
+        <d4p1:preparation-steps z:Id="67" z:Size="6">
+          <d4p1:preparation-step z:Id="68">
+            <d4p1:description z:Id="69">Trouvez des épices de curry.</d4p1:description>
+            <d4p1:order>1</d4p1:order>
+          </d4p1:preparation-step>
+          <d4p1:preparation-step z:Id="70">
+            <d4p1:description z:Id="71">Trouvez maintenant du poulet.</d4p1:description>
+            <d4p1:order>2</d4p1:order>
+          </d4p1:preparation-step>
+          <d4p1:preparation-step z:Id="72">
+            <d4p1:description z:Id="73">Coupez la tête du poulet et posez-la dans un plat.</d4p1:description>
+            <d4p1:order>3</d4p1:order>
+          </d4p1:preparation-step>
+          <d4p1:preparation-step z:Id="74">
+            <d4p1:description z:Id="75">Parsemez d'épices curry la tête de la poule.</d4p1:description>
+            <d4p1:order>4</d4p1:order>
+          </d4p1:preparation-step>
+          <d4p1:preparation-step z:Id="76">
+            <d4p1:description z:Id="77">Mettre le tout au four traditionnel 30min.</d4p1:description>
+            <d4p1:order>5</d4p1:order>
+          </d4p1:preparation-step>
+          <d4p1:preparation-step z:Id="78">
+            <d4p1:description z:Id="79">Dégustez en famille !</d4p1:description>
+            <d4p1:order>6</d4p1:order>
+          </d4p1:preparation-step>
+        </d4p1:preparation-steps>
+        <d4p1:title z:Id="80">Poulet au curry</d4p1:title>
+      </anyType>
+    </Value>
+  </KeyValueOfstringArrayOfanyTypety7Ep6D1>
+</ArrayOfKeyValueOfstringArrayOfanyTypety7Ep6D1>
\ No newline at end of file